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EGTB: loss in 13 half-moves

# move score
1 Rf6 loss in 12 half-moves
2 Ke6 loss in 8 half-moves
3 Kd7 loss in 6 half-moves
4 Ke8 loss in 6 half-moves
5 Kf7 loss in 6 half-moves
6 Re8 loss in 6 half-moves
7 Rf7 loss in 6 half-moves
8 Rg8 loss in 6 half-moves
9 Rh8 loss in 6 half-moves
10 Kd8 loss in 4 half-moves
11 Kf6 loss in 4 half-moves
12 Kd6 loss in 2 half-moves
13 Ra8 loss in 2 half-moves
14 Rb8 loss in 2 half-moves
15 Rc8 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Rf1 loss in 2 half-moves
18 Rf2 loss in 2 half-moves
19 Rf3 loss in 2 half-moves
20 Rf4 loss in 2 half-moves
21 Rf5 loss in 2 half-moves